Flazasulfuron

CAS 104040-78-0

US productionNot reported

Import value, 2024$2.4B

Top sourceIreland 52%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293590, 380893 · basket

These shares come from HS customs code 293590, 380893, which covers 201 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IE 52%IrelandSG 11%SingaporeCN 10%ChinaIN 8%IndiaDE 3%Germany

Portugal
Spain
South Korea
Austria
Poland
Hungary
Indonesia
Guatemala
Netherlands
Vietnam
Malaysia
Brazil
El Salvador
Finland
Ukraine
Taiwan
South Africa
Chile
Croatia
Greece
Hong Kong

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS104040-78-0

PubChem CIDNot recorded

DTXSIDDTXSID3034610

FormulaC13H12F3N5O5S

Mol. Weight407.32 g/mol

SMILESCOC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C2=NC=CC=C2C(F)(F)F)=N1

Data Sources

EPA CompTox (DSSTox) · DTXSID3034610Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Flazasulfuron (CAS 104040-78-0) https://chemicalindependence.com/chemical/104040-78-0/ EPA CompTox (DSSTox): 104040-78-0. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3034610 US Census international trade: HS 293590,380893 for CAS 104040-78-0. Reporting year: 2024. https://usatrade.census.gov/